

def    __a							( SCREAMING_SNAKE_CASE   )   ->  str:






    '''simple docstring'''
    __UpperCAmelCase					       =      0

    # if input_string is "aba" than new_input_string become "a|b|a"
    __UpperCAmelCase					       =      ''''''
    __UpperCAmelCase					       =      ''''''

    # append each character + "|" in new_string for range(0, length-1)
    for i in input_string[: len(_lowerCamelCase   ) - 1]:
        new_input_string += i + "|"
    # append last character
    new_input_string += input_string[-1]

    # we will store the starting and ending of previous furthest ending palindromic
    # substring
    __UpperCAmelCase       ,  __UpperCAmelCase					       =      0, 0

    # length[i] shows the length of palindromic substring with center i
    __UpperCAmelCase					       =      [1 for i in range(len(_lowerCamelCase   )   )]

    # for each character in new_string find corresponding palindromic string
    __UpperCAmelCase					       =      0
    for j in range(len(_lowerCamelCase   )   ):
        __UpperCAmelCase					       =      1 if j > r else min(length[l + r - j] // 2							, r - j + 1   )
        while (
            j - k >= 0
            and j + k < len(_lowerCamelCase   )
            and new_input_string[k + j] == new_input_string[j - k]
        ):
            k += 1

        __UpperCAmelCase					       =      2 * k - 1

        # does this string is ending after the previously explored end (that is r) ?
        # if yes the update the new r to the last index of this
        if j + k - 1 > r:
            __UpperCAmelCase					       =      j - k + 1  # noqa: E741
            __UpperCAmelCase					       =      j + k - 1

        # update max_length and start position
        if max_length < length[j]:
            __UpperCAmelCase					       =      length[j]
            __UpperCAmelCase					       =      j

    # create that string
    __UpperCAmelCase					       =      new_input_string[start - max_length // 2 : start + max_length // 2 + 1]
    for i in s:
        if i != "|":
            output_string += i

    return output_string


if __name__ == "__main__":
       import doctest

       doctest.testmod()






"""simple docstring"""






from __future__ import annotations



class 			lowercase					:






			def __init__(self  :	List[Any]      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	List[Any]:





				"""simple docstring"""


				lowerCAmelCase												=  key






			def 					UpperCAmelCase							(self  :	Tuple      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int			)       ->	list[str]:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key is an appropriate size
				key %= 255

				return [chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			) for ch in content]






			def 					UpperCAmelCase							(self  :	int      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int			)       ->	list[str]:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key is an appropriate size
				key %= 255

				return [chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			) for ch in content]






			def 					UpperCAmelCase							(self  :	Union[str, Any]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	str:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key can be any size
				while key > 255:
					key -= 255

				# This will be returned
				lowerCAmelCase												=  ''''''

				for ch in content:
					ans += chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			)

				return ans






			def 					UpperCAmelCase							(self  :	Union[str, Any]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	str:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key can be any size
				while key > 255:
					key -= 255

				# This will be returned
				lowerCAmelCase												=  ''''''

				for ch in content:
					ans += chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			)

				return ans






			def 					UpperCAmelCase							(self  :	List[str]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	bool:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				try:
					with open(SCREAMING_SNAKE_CASE_			) as fin, open('''encrypt.out'''      ,'''w+'''			) as fout:
						# actual encrypt-process
						for line in fin:
							fout.write(self.encrypt_string(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)			)

				except OSError:
					return False

				return True






			def 					UpperCAmelCase							(self  :	List[Any]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int			)       ->	bool:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				try:
					with open(SCREAMING_SNAKE_CASE_			) as fin, open('''decrypt.out'''      ,'''w+'''			) as fout:
						# actual encrypt-process
						for line in fin:
							fout.write(self.decrypt_string(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)			)

				except OSError:
					return False

				return True


# Tests
# crypt = XORCipher()
# key = 67

# # test encrypt
# print(crypt.encrypt("hallo welt",key))
# # test decrypt
# print(crypt.decrypt(crypt.encrypt("hallo welt",key), key))

# # test encrypt_string
# print(crypt.encrypt_string("hallo welt",key))

# # test decrypt_string
# print(crypt.decrypt_string(crypt.encrypt_string("hallo welt",key),key))

# if (crypt.encrypt_file("test.txt",key)):
#       print("encrypt successful")
# else:
#       print("encrypt unsuccessful")

# if (crypt.decrypt_file("encrypt.out",key)):
#       print("decrypt successful")
# else:
#       print("decrypt unsuccessful")


